Heat transfers in

The amount of heat absorbed by a body depends upon the

The surface which absorbs more heat is

Thermal conductivity of air is

If the cross sectional area is larger, the rate of flow of heat will be

The heat flow rate depends on

Eagles fly without flapping their wings due to

The substances through which heat does not conduct easily are called

The rate of emission of radiation depends on

The movement of cold air from the land towards the sea is called

In home utensils such as handles of sauce-pans, spoons, hot-plates etc. we use

White and polished surface reflects more heat than

A transparent polyethene sheet works as heat trapper because it

Thermal conductivity of water is

Wood, cork, cotton, rubber, glass etc. are

Transfer of heat through actual movement of molecules is

The good radiators of heat among these are

Thermal energy from a hot body flows to a cold body in the form of

Transfer of heat by actual movement of molecules from a hot place to a cold place is known as

The rate of flow of heat across the opposite faces of a meter cube of a substance maintained at the temperature difference of 1 kelvin is called its